Since This is a Common Error in Appcelerator Titanium .
Every Titanium user may face this before. But in the error message you mean difficult to find the error . since the Error Location is point to the Titanium Core not you code .

The Main Reason cause the Error is You have have add some Not available View or UI object in other View Object

Example:

this.Main_Wrapper.add(this.NotAvailableView);